PAPR reduction in DCO-OFDM based WDM VLC

Hussien Theeb Alrakah; Tilahun Zerihun Gutema; Sinan Sinanovic; Waisu O. Popoola

doi:10.1109/JLT.2022.3196505

PAPR reduction in DCO-OFDM based WDM VLC

Hussien Theeb Alrakah^*, Tilahun Zerihun Gutema, Sinan Sinanovic, Waisu O. Popoola

^*Corresponding author for this work

Electronic Engineering

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

255 Downloads (Pure)

Abstract

Visible light communication (VLC) can achieve high data rate transmission with multicarrier modulation techniques. The common variant is direct current (DC) optical orthogonal frequency division multiplexing (DCO-OFDM) which offers a spectral efficient modulation solution for VLC. However, similar to other multicarrier modulation schemes, DCO-OFDM suffers from a high peak-to-average power ratio (PAPR). In this paper, the efficacy of pilot-assisted (PA) PAPR reduction system in DCO-OFDM based VLC is demonstrated experimentally. Wavelength division multiplexing (WDM) is applied using three off-the-shelf light emitting diodes (LEDs). PA DCO-OFDM is compared to the conventional DCO-OFDM based on achievable data rate and bit error rate (BER). The available modulation bandwidth of each LED is utilised by adaptive bit and power loading in both systems. The proposed system reduces the high PAPR values of the system, hence, reduces the clipping noise and minimises the nonlinearity effect of each wavelength. Thus, the PA DCO-OFDM has achieved more than 7% data rate higher than that of the conventional DCO-OFDM with no PAPR reduction.

Original language	English
Pages (from-to)	6359-6365
Number of pages	7
Journal	Journal of Lightwave Technology
Volume	40
Issue number	19
DOIs	https://doi.org/10.1109/JLT.2022.3196505
Publication status	Published - 4 Aug 2022

Keywords

optical wireless communication
visible light communication
optical OFDM
DCO-OFDM
peak-to-average power ratio (PAPR)
pilot-assisted (PA)
wavelength division multiplexing (WDM)

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

Documents and Links

10.1109/JLT.2022.3196505

Alrakah, H. T. et al (2022) PAPR reduction in DCO-OFDM based WDM VLC
Copyright © 2022 IEEE. This is a post-peer review, pre-copy edited version of the article and may differ slightly from the final published version of the work. This work is made available in line with the publisher policy. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
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Cite this

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title = "PAPR reduction in DCO-OFDM based WDM VLC",

abstract = "Visible light communication (VLC) can achieve high data rate transmission with multicarrier modulation techniques. The common variant is direct current (DC) optical orthogonal frequency division multiplexing (DCO-OFDM) which offers a spectral efficient modulation solution for VLC. However, similar to other multicarrier modulation schemes, DCO-OFDM suffers from a high peak-to-average power ratio (PAPR). In this paper, the efficacy of pilot-assisted (PA) PAPR reduction system in DCO-OFDM based VLC is demonstrated experimentally. Wavelength division multiplexing (WDM) is applied using three off-the-shelf light emitting diodes (LEDs). PA DCO-OFDM is compared to the conventional DCO-OFDM based on achievable data rate and bit error rate (BER). The available modulation bandwidth of each LED is utilised by adaptive bit and power loading in both systems. The proposed system reduces the high PAPR values of the system, hence, reduces the clipping noise and minimises the nonlinearity effect of each wavelength. Thus, the PA DCO-OFDM has achieved more than 7% data rate higher than that of the conventional DCO-OFDM with no PAPR reduction.",

keywords = "optical wireless communication, visible light communication, optical OFDM, DCO-OFDM, peak-to-average power ratio (PAPR), pilot-assisted (PA), wavelength division multiplexing (WDM)",

author = "Alrakah, {Hussien Theeb} and Gutema, {Tilahun Zerihun} and Sinan Sinanovic and Popoola, {Waisu O.}",

year = "2022",

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doi = "10.1109/JLT.2022.3196505",

language = "English",

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T1 - PAPR reduction in DCO-OFDM based WDM VLC

AU - Alrakah, Hussien Theeb

AU - Gutema, Tilahun Zerihun

AU - Sinanovic, Sinan

AU - Popoola, Waisu O.

PY - 2022/8/4

Y1 - 2022/8/4

N2 - Visible light communication (VLC) can achieve high data rate transmission with multicarrier modulation techniques. The common variant is direct current (DC) optical orthogonal frequency division multiplexing (DCO-OFDM) which offers a spectral efficient modulation solution for VLC. However, similar to other multicarrier modulation schemes, DCO-OFDM suffers from a high peak-to-average power ratio (PAPR). In this paper, the efficacy of pilot-assisted (PA) PAPR reduction system in DCO-OFDM based VLC is demonstrated experimentally. Wavelength division multiplexing (WDM) is applied using three off-the-shelf light emitting diodes (LEDs). PA DCO-OFDM is compared to the conventional DCO-OFDM based on achievable data rate and bit error rate (BER). The available modulation bandwidth of each LED is utilised by adaptive bit and power loading in both systems. The proposed system reduces the high PAPR values of the system, hence, reduces the clipping noise and minimises the nonlinearity effect of each wavelength. Thus, the PA DCO-OFDM has achieved more than 7% data rate higher than that of the conventional DCO-OFDM with no PAPR reduction.

AB - Visible light communication (VLC) can achieve high data rate transmission with multicarrier modulation techniques. The common variant is direct current (DC) optical orthogonal frequency division multiplexing (DCO-OFDM) which offers a spectral efficient modulation solution for VLC. However, similar to other multicarrier modulation schemes, DCO-OFDM suffers from a high peak-to-average power ratio (PAPR). In this paper, the efficacy of pilot-assisted (PA) PAPR reduction system in DCO-OFDM based VLC is demonstrated experimentally. Wavelength division multiplexing (WDM) is applied using three off-the-shelf light emitting diodes (LEDs). PA DCO-OFDM is compared to the conventional DCO-OFDM based on achievable data rate and bit error rate (BER). The available modulation bandwidth of each LED is utilised by adaptive bit and power loading in both systems. The proposed system reduces the high PAPR values of the system, hence, reduces the clipping noise and minimises the nonlinearity effect of each wavelength. Thus, the PA DCO-OFDM has achieved more than 7% data rate higher than that of the conventional DCO-OFDM with no PAPR reduction.

KW - optical wireless communication

KW - visible light communication

KW - optical OFDM

KW - DCO-OFDM

KW - peak-to-average power ratio (PAPR)

KW - pilot-assisted (PA)

KW - wavelength division multiplexing (WDM)

U2 - 10.1109/JLT.2022.3196505

DO - 10.1109/JLT.2022.3196505

M3 - Article

SN - 0733-8724

VL - 40

SP - 6359

EP - 6365

JO - Journal of Lightwave Technology

JF - Journal of Lightwave Technology

IS - 19

ER -

PAPR reduction in DCO-OFDM based WDM VLC

Abstract

Keywords

ASJC Scopus subject areas

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